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Finding the Fourth Proportional to 30,479.49, 45,719.24 and 10,745.46

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Solution

The fourth proportional to 30,479.49, 45,719.24 and 10,745.46 is: 16,118.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,479.49 : 45,719.24 = 10,745.46 : x
  2. Step 2: Convert to fraction form
    30,479.49/45,719.24 = 10,745.46/x
  3. Step 3: Cross multiply
    30,479.49x = 45,719.24 × 10,745.46
  4. Step 4: Simplify right side
    30,479.49x = 491,274,210.92
  5. Step 5: Solve for x
    x = 491,274,210.92/30,479.49
  6. Step 6: Final answer
    x = 16,118.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.